A 4.0kg mass is attached to one end of a rope 2m long. If the mass is swung in a vertical circle from the free end of the rope, what is the tension in the rope when the mass is at its highest point if it is moving with a speed of 5 m/s?
(A) 5.4 N
(B) 10.8 N
(C) 21.6 N
(D) 50 N
(E) 65.4 N
